automatic reset of errors
4.3.2.1 Auto-retry for configurable errors
For some errors for which the error reaction can be freely selected, the triggering
error can be automatically reset by selecting value 5 or 9.
dec. ramp -> fault
auto retry
The reaction corresponds to value 1 with the following difference: If the
error signal becomes inactive during the FAULT REACTION ACTIVE
state, the fault resets itself. The drive changes to the SWITCHED ON
state after the error response time.
The fault that triggered the stop function is automatically reset.
4.3.2.2 Automatic fault reset UP
4.3.2.2.1 Activation
The fault response for an undervoltage fault is not selectable, but an auto-retry (au-
tomatic fault reset) can be programmed.
1: auto retry E.UP / Lt
ready
Activation of automatic reset for the error UP and the er-
ror LT ready
If the mains voltage breakdown is too long, an automatic restart is often not rea-
sonable, since parts of the periphery are also not ready for operation, or the appli-
cation requires a defined restart.
Therefore, the time wherein an Auto-Retry E.UP is performed can be limited.
The time within an auto reset is still reasonable for the application is set in
pn84[1]auto-retry UP time. If precharging is completed after this time (ru04 supply
unit state = 4:run), an automatic error reset is performed.
automatic reset for the UP error is always performed
Time within the execution of Auto-Retry UP is still reasonable
Whether an automatic reset is performed depends only on the
time the error is present. If the minimum switch-off time pre-
vents the release of the modulation afterwards, the error is re-
set anyway.
Often the occurrence of an error leads to the switch off of the inverter by an exter-
nal control. In order that the control can react differently to the special case of
"mains voltage failure", it is possible to suppress the error display/output.
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